QtBaseViewer.cc 62.2 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openflipper.org                             *
 *                                                                           *
 *---------------------------------------------------------------------------*
 *  This file is part of OpenFlipper.                                        *
 *                                                                           *
 *  OpenFlipper is free software: you can redistribute it and/or modify      *
 *  it under the terms of the GNU Lesser General Public License as           *
 *  published by the Free Software Foundation, either version 3 of           *
 *  the License, or (at your option) any later version with the              *
 *  following exceptions:                                                    *
 *                                                                           *
 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
 *                                                                           *
 *  OpenFlipper is distributed in the hope that it will be useful,           *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
 *  GNU Lesser General Public License for more details.                      *
 *                                                                           *
 *  You should have received a copy of the GNU LesserGeneral Public          *
 *  License along with OpenFlipper. If not,                                  *
 *  see <http://www.gnu.org/licenses/>.                                      *
 *                                                                           *
\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision$                                                         *
 *   $Author$                                                      *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/
Jan Möbius's avatar
 
Jan Möbius committed
42 43 44 45 46 47




//=============================================================================
//
Jan Möbius's avatar
 
Jan Möbius committed
48
//  CLASS glViewer - IMPLEMENTATION
Jan Möbius's avatar
 
Jan Möbius committed
49 50 51 52 53 54 55
//
//=============================================================================


//== INCLUDES =================================================================

#include "QtBaseViewer.hh"
Jan Möbius's avatar
Jan Möbius committed
56
#include "QtGLViewerLayout.hh"
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
57
#include "CursorPainter.hh"
Jan Möbius's avatar
 
Jan Möbius committed
58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
#include <ACG/QtWidgets/QtWheel.hh>
#include <ACG/Scenegraph/DrawModes.hh>
#include <ACG/GL/gl.hh>

#include <iostream>
#include <string>
#include <assert.h>

#include <QMimeData>
#include <QToolButton>
#include <QFrame>

#include <QClipboard>
#include <QApplication>
#include <QSplitter>
#include <QLayout>
#include <QPushButton>
#include <QLabel>
#include <QImage>
#include <QColorDialog>
#include <QFileDialog>
#include <QToolTip>
#include <QTextStream>
#include <QDateTime>
#include <QTimer>

#include <QDesktopWidget>
#include <QMouseEvent>
#include <QVBoxLayout>
#include <QKeyEvent>
#include <QGridLayout>
#include <QContextMenuEvent>
#include <QWheelEvent>
#include <QDropEvent>
#include <QPixmap>
#include <QMenu>
#include <QVariant>
#include <QButtonGroup>
#include <QToolBar>

98 99
#include <QGraphicsView>
#include <QGraphicsScene>
Jan Möbius's avatar
 
Jan Möbius committed
100 101 102
#include <QGraphicsWidget>
#include <QGraphicsGridLayout>
#include <QGraphicsProxyWidget>
Jan Möbius's avatar
 
Jan Möbius committed
103 104
#include <QPainter>
#include <QPaintEngine>
Jan Möbius's avatar
 
Jan Möbius committed
105 106 107 108 109 110 111 112 113

#ifdef max
#  undef max
#endif

#ifdef min
#  undef min
#endif

114
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
Jan Möbius's avatar
Jan Möbius committed
115
#include <OpenFlipper/common/ViewObjectMarker.hh>
Jan Möbius's avatar
 
Jan Möbius committed
116

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
117 118
#include <OpenFlipper/common/GlobalOptions.hh>

119 120
#include <QGLFramebufferObject>

Jan Möbius's avatar
 
Jan Möbius committed
121 122 123 124 125 126 127 128 129 130 131 132
//== NAMESPACES ===============================================================



//== IMPLEMENTATION ==========================================================

static const char          VIEW_MAGIC[] =
  "ACG::QtWidgets::QGLViewerWidget encoded view";

//== IMPLEMENTATION ==========================================================


133
glViewer::glViewer( QGraphicsScene* _scene,
134
                    QGLWidget* _glWidget,
135
                    Viewer::ViewerProperties& _properties,
136
                    QGraphicsWidget* _parent) :
Jan Möbius's avatar
 
Jan Möbius committed
137
  QGraphicsWidget(_parent),
Jan Möbius's avatar
 
Jan Möbius committed
138 139 140
  glareaGrabbed_(false),
  projectionUpdateLocked_(false),
  blending_(true),
Jan Möbius's avatar
 
Jan Möbius committed
141 142
  glScene_(_scene),
  glWidget_(_glWidget),
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
143 144
  cursorPainter_(0),
  cursorPositionValid_(false),
Jan Möbius's avatar
Jan Möbius committed
145 146 147
  pickCache_(0),
  updatePickCache_(true),
  pickCacheSupported_(true),
148
  clickEvent_(QEvent::MouseButtonPress, QPoint (), Qt::NoButton, Qt::NoButton, Qt::NoModifier),
Dirk Wilden's avatar
Dirk Wilden committed
149
  properties_(_properties),
150 151
  glstate_(0),
  initialized_(false)
Jan Möbius's avatar
 
Jan Möbius committed
152 153 154
{

  // widget stuff
155
  createWidgets();
Jan Möbius's avatar
 
Jan Möbius committed
156 157 158

  // bind GL context to GL state class
  glstate_ = new ACG::GLState();
159 160
  properties_.setglState( glstate_ );

Jan Möbius's avatar
 
Jan Möbius committed
161 162 163
  // state
  orthoWidth_       = 2.0;
  isRotating_       = false;
Mike Kremer's avatar
Mike Kremer committed
164
  lookAround_       = false;
Jan Möbius's avatar
 
Jan Möbius committed
165 166 167 168 169 170 171 172
  near_             = 0.1;
  far_              = 100.0;
  fovy_             = 45.0;

  sceneGraphRoot_   = 0;

  normalsMode_      = DONT_TOUCH_NORMALS;
  projectionMode_   = PERSPECTIVE_PROJECTION;
Jan Möbius's avatar
Jan Möbius committed
173
  navigationMode_   = NORMAL_NAVIGATION;
174

Jan Möbius's avatar
 
Jan Möbius committed
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194

  light_matrix_.identity();

  trackMouse_ = false;

  // stereo
  stereo_ = false;

  // Note: we start locked (initialization of updateLocked_)
  // will be unlocked in initializeGL()

  QSizePolicy sp = sizePolicy();
  sp.setHorizontalPolicy( QSizePolicy::Expanding );
  sp.setVerticalPolicy( QSizePolicy::Expanding );
  sp.setHorizontalStretch( 1 );
  sp.setVerticalStretch( 1 );
  setSizePolicy( sp );

  redrawTime_.start ();

195 196 197 198 199 200 201
  // timer for animation
  timer_ = new QTimer( this );
  connect( timer_, SIGNAL(timeout()), this, SLOT( slotAnimation()) );

  allowRotation_ = true;


Jan Möbius's avatar
 
Jan Möbius committed
202 203 204
  connect( &properties_,SIGNAL(updated()), this, SLOT( slotPropertiesUpdated() ) );


Dirk Wilden's avatar
Dirk Wilden committed
205 206 207
  //check for updated properties once
  slotPropertiesUpdated();

Jan Möbius's avatar
 
Jan Möbius committed
208
  setAcceptDrops(true);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
209

210
  setHome();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
211 212 213 214 215 216 217 218

  // initialize custom anaglyph stereo
  agTexWidth_ = 0;
  agTexHeight_ = 0;
  agTexture_[0] = 0;
  agTexture_[1] = 0;
  agProgram_ = 0;
  customAnaglyphSupported_ = false;
219 220 221

  clickTimer_.setSingleShot (true);
  connect (&clickTimer_, SIGNAL(timeout ()), this, SLOT(slotClickTimeout ()));
Jan Möbius's avatar
 
Jan Möbius committed
222 223 224 225 226 227
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
228
glViewer::~glViewer()
Jan Möbius's avatar
 
Jan Möbius committed
229
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
230
  finiCustomAnaglyphStereo ();
Jan Möbius's avatar
 
Jan Möbius committed
231 232 233 234 235 236 237 238
  delete glstate_;
}


//-----------------------------------------------------------------------------


QSize
Jan Möbius's avatar
 
Jan Möbius committed
239
glViewer::sizeHint() const
Jan Möbius's avatar
 
Jan Möbius committed
240 241 242 243 244 245 246
{
  return QSize( 600, 600 );
}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
247
void glViewer::makeCurrent() {
Jan Möbius's avatar
 
Jan Möbius committed
248 249 250
  glWidget_->makeCurrent();
}

Jan Möbius's avatar
 
Jan Möbius committed
251
void glViewer::swapBuffers() {
Jan Möbius's avatar
 
Jan Möbius committed
252 253 254 255 256 257 258
  glWidget_->swapBuffers();
}


//-----------------------------------------------------------------------------


259
void glViewer::sceneGraph(ACG::SceneGraph::BaseNode* _root, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
260 261 262
{
  sceneGraphRoot_ = _root;

Jan Möbius's avatar
Jan Möbius committed
263
  if (sceneGraphRoot_ )
Jan Möbius's avatar
 
Jan Möbius committed
264 265 266 267 268 269 270 271 272 273
  {
    // get scene size
    ACG::SceneGraph::BoundingBoxAction act;
    ACG::SceneGraph::traverse(sceneGraphRoot_, act);

    ACG::Vec3d bbmin = (ACG::Vec3d) act.bbMin();
    ACG::Vec3d bbmax = (ACG::Vec3d) act.bbMax();

    if ( ( bbmin[0] > bbmax[0] ) ||
         ( bbmin[1] > bbmax[1] ) ||
274
         ( bbmin[2] > bbmax[2] )   )
275
      setScenePos( ACG::Vec3d( 0.0,0.0,0.0 ) , 1.0, _setCenter );
276 277
    else
      setScenePos( ( bbmin + bbmax )        * 0.5,
278 279
                   ( bbmax - bbmin ).norm() * 0.5,
                   _setCenter);
Jan Möbius's avatar
 
Jan Möbius committed
280 281 282 283 284 285 286 287 288 289 290
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
291
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
292 293 294 295 296 297 298
{
  trackMouse_ = _track;
}


//-----------------------------------------------------------------------------

Jan Möbius's avatar
 
Jan Möbius committed
299
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
300 301 302 303 304 305
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
306
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
307 308 309 310 311 312
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
313
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
314 315 316 317 318 319 320 321 322 323
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
324
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
325 326
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
327
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
328
  else
329
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
330 331

  updateProjectionMatrix();
332 333
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
334 335
}

336 337 338
void glViewer::toggleNavigationMode()
{
  if (navigationMode_ == NORMAL_NAVIGATION)
Mike Kremer's avatar
Mike Kremer committed
339
    navigationMode(FIRSTPERSON_NAVIGATION);
340 341 342 343 344 345 346 347 348 349 350 351 352
  else
    navigationMode(NORMAL_NAVIGATION);
}


void glViewer::navigationMode(NavigationMode _n)
{
  if ((navigationMode_ = _n) == NORMAL_NAVIGATION)
    emit navigationModeChanged( true );
  else
    emit navigationModeChanged( false );
}

Jan Möbius's avatar
 
Jan Möbius committed
353

Jan Möbius's avatar
 
Jan Möbius committed
354
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
355 356 357 358 359 360 361 362
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

Jan Möbius's avatar
Jan Möbius committed
363 364
  // In scereo mode we have to use a perspective matrix
  if (stereo_ || projectionMode_ == PERSPECTIVE_PROJECTION)
Jan Möbius's avatar
 
Jan Möbius committed
365
  {
366 367 368 369 370 371 372 373
    double aspect;

    if (isVisible() && glWidth() && glHeight())
      aspect = (double) glWidth() / (double) glHeight();
    else
      aspect = 1.0;

    glstate_->perspective(fovy_, (GLdouble) aspect,
Jan Möbius's avatar
Jan Möbius committed
374 375 376 377 378
                          near_, far_);
  }
  else
  {
    double aspect;
Jan Möbius's avatar
Jan Möbius committed
379

380
    if (isVisible() && glWidth() && glHeight())
Jan Möbius's avatar
Jan Möbius committed
381 382
      aspect = (double) glWidth() / (double) glHeight();
    else
383
      aspect = 1.0;
Jan Möbius's avatar
 
Jan Möbius committed
384

Jan Möbius's avatar
Jan Möbius committed
385 386 387
    glstate_->ortho( -orthoWidth_, orthoWidth_,
                     -orthoWidth_/aspect, orthoWidth_/aspect,
                     near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
388
  }
389
  
Jan Möbius's avatar
 
Jan Möbius committed
390 391 392 393 394 395
}


//-----------------------------------------------------------------------------


396
void glViewer::setScenePos(const ACG::Vec3d& _center, double _radius, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
397
{
398 399 400 401 402 403 404 405 406 407
  if(_setCenter) {
    scene_center_ = trackball_center_ = _center;
  }

  scene_radius_ = trackball_radius_ = _radius;

  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);

  // Set far plane
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
408

409 410
  // Set near plane
  near_   = std::max(0.0001f * scene_radius_,  -(c[2] + scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
411

412

413 414 415 416
  updateProjectionMatrix();
  updateGL();

  emit viewChanged();
417 418
}

419 420 421 422 423 424
//-----------------------------------------------------------------------------

void glViewer::setSceneCenter( const ACG::Vec3d& _center ) {

	scene_center_ = trackball_center_ = _center;
}
425 426 427 428

//----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
429
void glViewer::viewingDirection( const ACG::Vec3d& _dir, const ACG::Vec3d& _up )
Jan Möbius's avatar
 
Jan Möbius committed
430 431 432 433 434 435
{
  // calc eye point for this direction
  ACG::Vec3d eye = scene_center_ - _dir*(3.0*scene_radius_);

  glstate_->reset_modelview();
  glstate_->lookAt((ACG::Vec3d)eye, (ACG::Vec3d)scene_center_, (ACG::Vec3d)_up);
436 437
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
438 439 440 441 442 443
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
444
void glViewer::normalsMode(NormalsMode _mode)
Jan Möbius's avatar
 
Jan Möbius committed
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466
{
  makeCurrent();

  switch(normalsMode_ = _mode)
  {
    case DONT_TOUCH_NORMALS:
      glDisable(GL_NORMALIZE);
      break;

    case NORMALIZE_NORMALS:
      glEnable(GL_NORMALIZE);
      break;
  }

  updateGL();
}


//-----------------------------------------------------------------------------


void
Jan Möbius's avatar
 
Jan Möbius committed
467
glViewer::copyToImage( QImage& _image,
Jan Möbius's avatar
Jan Möbius committed
468 469
		       unsigned int _l, unsigned int _t,
		       unsigned int _w, unsigned int _h,
Jan Möbius's avatar
 
Jan Möbius committed
470 471
			   GLenum /* _buffer */ )
{
472 473 474 475

//    qApp->processEvents();
//    makeCurrent();

Jan Möbius's avatar
Jan Möbius committed
476
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
477 478 479 480 481 482
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
483
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
484
{
Jan Möbius's avatar
 
Jan Möbius committed
485
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
486
  {
Jan Möbius's avatar
Jan Möbius committed
487
    updatePickCache_ = true;
Jan Möbius's avatar
 
Jan Möbius committed
488
    update();
489 490

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
491 492 493 494 495 496 497 498
  }
}



//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
499
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
500 501 502 503 504
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
 
Jan Möbius committed
505 506 507 508
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
509
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
 
Jan Möbius committed
510 511

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
512
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529

  // Set near plane
  near_   = std::max(0.0001f * scene_radius_,  -(c[2] + scene_radius_));

  // measure distance from scene center ( as projection onto the z-Axis )
//   if ( -c[2] < scene_radius_ ) {
//     std::cerr << "Camera in scene radius" << std::endl;
//
//   }
//
//   std::cerr << "-c[2]   : " << -c[2] << std::endl;
//   std::cerr << "radius  : " << scene_radius_ << std::endl;
//   std::cerr << "z-range : " << far_ - near_ << std::endl;
//   std::cerr << "Near    : " << near_ << std::endl;
//   std::cerr << "Far     : " << far_ << std::endl;
//   near_   = std::max(far_ / 256.0f,  -(c[2] + scene_radius_));

Jan Möbius's avatar
 
Jan Möbius committed
530 531 532 533 534 535 536 537 538 539 540 541
  updateProjectionMatrix();

  // store time since last repaint in gl state and restart timer
  glstate_->set_msSinceLastRedraw (redrawTime_.restart ());

  // draw mono or stereo
  makeCurrent();
  if (stereo_) drawScene_stereo();
  else         drawScene_mono();

  glFinish();
  frame_time_ = timer.elapsed();
Jan Möbius's avatar
Jan Möbius committed
542 543


Jan Möbius's avatar
 
Jan Möbius committed
544 545 546 547 548 549
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
550
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
551 552 553
{
  if (sceneGraphRoot_)
  {
554
    if (! properties_.renderPicking() ) {
555

Jan Möbius's avatar
Jan Möbius committed
556
      ViewObjectMarker *oM = properties_.objectMarker();
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586
      GLuint refBits = 0;
      QSet<GLuint> references;

      if (oM)
      {
        glClear (GL_STENCIL_BUFFER_BIT);
        glEnable (GL_STENCIL_TEST);
        glStencilOp (GL_KEEP, GL_KEEP, GL_ZERO);
        glStencilFunc (GL_ALWAYS, 0, ~0);

        for (PluginFunctions::ObjectIterator o_it(PluginFunctions::ALL_OBJECTS, DATA_ALL) ;
                                             o_it != PluginFunctions::objectsEnd(); ++o_it)
        {
          bool ok;
          GLuint ref;

          ok = oM->stencilRefForObject(*o_it, ref);

          if (ok)
          {
            o_it->stencilRefNode ()->setReference (ref);
            o_it->stencilRefNode ()->show ();
            refBits |= ref;
            references << ref;
          }
          else
            o_it->stencilRefNode ()->hide ();
        }
      }

587 588
      ACG::SceneGraph::DrawAction action( properties_.drawMode() , false);
      ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
589 590 591

      if( blending_ )
      {
592 593
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), true);
        ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
594
      }
595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666

      if (oM)
      {
        if (oM->type() == ViewObjectMarker::PerBit)
        {
          references.clear ();
          for (unsigned int i = 0; i < sizeof (GLuint) * 8; i++)
            if (refBits & (1 << i))
              references << (1 << i);
        }

        glPushAttrib(GL_ALL_ATTRIB_BITS);

        glEnable(GL_BLEND);
        glDisable(GL_DEPTH_TEST);
        glDisable(GL_LIGHTING);
        glDisable(GL_DITHER);

        int vp_l, vp_b, vp_w, vp_h;
        glstate_->get_viewport (vp_l, vp_b, vp_w, vp_h);

        glMatrixMode(GL_PROJECTION);
        glPushMatrix ();
        glLoadIdentity();
        glOrtho(0, vp_w, vp_h, 0, 0, 1.0);
        glMatrixMode(GL_MODELVIEW);
        glPushMatrix ();
        glLoadIdentity();

        glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);

        foreach (unsigned int ref, references)
        {
          bool ok;
          GLenum sfactor;
          GLenum dfactor;
          ACG::Vec4f color;
          unsigned int mask = ~0;

          if (oM->type() == ViewObjectMarker::PerBit)
          {
            ok = oM->blendForStencilRefBit (ref, sfactor, dfactor, color);
            mask = ref;
          }
          else
            ok = oM->blendForStencilRefNumber (ref, sfactor, dfactor, color);

          if (!ok)
            continue;

          glStencilFunc (GL_EQUAL, ref, mask);

          glBlendFunc (sfactor, dfactor);
          glColor4f (color[0], color [1], color [2], color[3]);

          glBegin (GL_QUADS);
          glVertex2i(0, 0);
          glVertex2i(0, vp_h);
          glVertex2i(vp_w, vp_h);
          glVertex2i(vp_w, 0);
          glEnd ();

        }

        glMatrixMode(GL_PROJECTION);
        glPopMatrix ();
        glMatrixMode(GL_MODELVIEW);
        glPopMatrix ();

        glPopAttrib ();
        glDisable (GL_STENCIL_TEST);
      }
Jan Möbius's avatar
 
Jan Möbius committed
667 668 669 670 671 672
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
673
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
674 675 676 677 678
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
679
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
680 681
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
      ACG::SceneGraph::traverse(sceneGraphRoot_, action);
Jan Möbius's avatar
 
Jan Möbius committed
682 683

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
684
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
685 686
    }
  }
Jan Möbius's avatar
Jan Möbius committed
687

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
688 689 690 691 692 693 694 695 696 697 698 699
  if (cursorPainter_ && cursorPainter_->enabled () && cursorPositionValid_)
  {
    glstate_->push_modelview_matrix ();
    // reset view transformation
    glstate_->reset_modelview ();
    // translate cursor position to 0,0
    glstate_->translate (cursorPoint3D_[0], cursorPoint3D_[1], cursorPoint3D_[2]);
    // paint cursor
    cursorPainter_->paintCursor (glstate_);
    glstate_->pop_modelview_matrix ();
  }

Jan Möbius's avatar
Jan Möbius committed
700
  draw_lights();
Jan Möbius's avatar
 
Jan Möbius committed
701 702 703 704 705 706 707
}


//-----------------------------------------------------------------------------


void
Jan Möbius's avatar
 
Jan Möbius committed
708
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
709
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
710 711 712 713 714 715 716 717 718 719 720 721 722
  if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::OpenGL && OpenFlipper::Options::glStereo ())
  {
    drawScene_glStereo ();
    return;
  }
  else if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::AnaglyphCustom && customAnaglyphSupported_)
  {
    drawScene_customAnaglyphStereo ();

    // if somthing went wrong, fallback to normal anaglyph
    if (customAnaglyphSupported_)
      return;
  }
Jan Möbius's avatar
 
Jan Möbius committed
723

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
724 725
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
726 727 728 729 730


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
731
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
732 733 734 735 736 737 738 739 740
{
  home_modelview_          = glstate_->modelview();
  home_inverse_modelview_  = glstate_->inverse_modelview();
  homeOrthoWidth_          = orthoWidth_;
  home_center_             = trackball_center_;
  home_radius_             = trackball_radius_;
}


Jan Möbius's avatar
 
Jan Möbius committed
741
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
742 743 744 745 746 747 748 749
{
  makeCurrent();
  glstate_->set_modelview(home_modelview_, home_inverse_modelview_);
  orthoWidth_ = homeOrthoWidth_;
  trackball_center_ = home_center_;
  trackball_radius_ = home_radius_;
  updateProjectionMatrix();
  updateGL();
750 751
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
752 753 754 755 756 757 758

}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
759
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
760
{
761
	makeCurrent();
Jan Möbius's avatar
 
Jan Möbius committed
762

763 764
	// update scene graph (get new bounding box and set projection right, including near and far plane)
	properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
765

766 767 768 769 770 771 772 773 774 775 776 777 778 779
	// move center (in camera coords) to origin and translate in -z dir
	translate(-(glstate_->modelview().transform_point(scene_center_))
			- ACG::Vec3d(0.0, 0.0, 3.0 * scene_radius_));

	orthoWidth_ = 1.1 * scene_radius_;
	double aspect = (double) glWidth() / (double) glHeight();
	if (aspect > 1.0)
		orthoWidth_ *= aspect;

	sceneGraph(PluginFunctions::getSceneGraphRootNode(), true);

	properties_.unLockUpdate();
	updateProjectionMatrix();
	updateGL();
780 781
        
        emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
782 783 784 785 786 787 788

}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
789
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
790 791 792 793 794 795 796 797 798 799
{
  makeCurrent();

  unsigned int nodeIdx, targetIdx;
  ACG::Vec3d hitPoint;

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
800
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820
      ACG::Vec3d t = hitPoint - eye;
      ACG::Vec3d e = eye + t * (_move_back ? -0.5f : 0.5f);
      flyTo(e, hitPoint, 300);
    }
    else
    {
      // Zoom in or out?
      orthoWidth_ *= _move_back ? 2.0 : 0.5;

      // Set the double click point as the new trackball center
      // Rotations will use this point as the center.
      trackball_center_ = hitPoint;

      /// @todo : Translate view such that hitpoint is in center of viewport

      // Update the projection matrix
      updateProjectionMatrix();

      // Redraw scene
      updateGL();
821 822
      
      emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
823 824
    }

Jan Möbius's avatar
Jan Möbius committed
825

Jan Möbius's avatar
 
Jan Möbius committed
826 827 828 829
  }
}


Jan Möbius's avatar
 
Jan Möbius committed
830
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876
			 const ACG::Vec3d&  _center,
			 double        _time)
{
  makeCurrent();

  // compute rotation
  ACG::Vec3d c = glstate_->modelview().transform_point(_center);
  ACG::Vec3d p = glstate_->modelview().transform_point(_position);
  ACG::Vec3d view =(p-c).normalize();
  ACG::Vec3d z(0,0,1);
  ACG::Vec3d axis = (z % -view).normalize();
  double angle = acos(std::max(-1.0,
			      std::min(1.0,
				       (z | view)))) / M_PI * 180.0;

  if (angle > 175)
    axis  = ACG::Vec3d(0,1,0);


  // compute translation
  ACG::Vec3d target = glstate_->modelview().transform_point(_center);
  ACG::Vec3d trans ( -target[0],
		-target[1],
		-target[2] - (_position-_center).norm() );



  // how many frames in _time ms ?
  unsigned int  frames = (unsigned int)(_time / frame_time_);
  if (frames > 1000) frames=1000;




  // animate it
  if (frames > 10)
  {
    ACG::Vec3d t = trans / (double)frames;
    double a = angle / (double)frames;

    for (unsigned int i=0; i<frames; ++i)
    {
      translate(t);
      if (fabs(a) > FLT_MIN)
	     rotate(axis, a, _center);

Jan Möbius's avatar
 
Jan Möbius committed
877 878
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
879
    }
880
    updatePickCache_ = true;
Jan Möbius's avatar
 
Jan Möbius committed
881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
  }


  // no animation
  else
  {
    translate(trans);
    if (fabs(angle) > FLT_MIN)
      rotate(axis, angle, _center);

    updateGL();
  }


  trackball_center_ = _center;
  trackball_radius_ = std::max(scene_radius_,
			       (_center-_position).norm()*0.9f);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
904
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
905 906 907 908 909
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
910 911
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
912 913 914 915 916 917
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
918
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
919 920 921
{

  // lock update
922
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
923 924 925 926 927 928 929 930 931 932 933 934 935 936

  // init GL state
  glstate_->initialize();

  // OpenGL state
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_LIGHTING);
  glDisable(GL_DITHER);
  glShadeModel( GL_FLAT );


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

937
  // Update all settings which would require a redraw
938
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967

  // light sources
  light_matrix_.identity();
  update_lights();


  // scene pos and size
  scene_center_ = trackball_center_ = ACG::Vec3d( 0.0, 0.0, 0.0 );
  scene_radius_ = trackball_radius_ = 1.0;
  orthoWidth_   = 2.0;


  // modelview
  glstate_->translate(0.0, 0.0, -3.0);
  setHome();


  // pixel transfer
  glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
  glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
  glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  glPixelStorei(GL_PACK_ROW_LENGTH, 0);
  glPixelStorei(GL_PACK_SKIP_ROWS, 0);
  glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
  glPixelStorei(GL_PACK_ALIGNMENT, 1);


  // unlock update (we started locked)
968
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
969 970 971 972 973

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
974 975 976 977 978 979 980 981

  initialized_ = true;

  if (sceneGraphRoot_)
  {
    sceneGraph(sceneGraphRoot_, true);
    viewAll ();
  }
Jan Möbius's avatar
 
Jan Möbius committed
982 983 984 985 986
}


//-----------------------------------------------------------------------------

Jan Möbius's avatar
Jan Möbius committed
987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
/**
 *
 */
void  glViewer::draw_lights() {
//   makeCurrent();
// //
//   glMatrixMode(GL_MODELVIEW);
//   glPushMatrix();
//   glLoadIdentity();
//   glMultMatrixd(light_matrix_.data());
//
//   std::cerr << "light_matrix_\n" << light_matrix_ << std::endl;
// //
//   glPointSize(3);
// //
//   glColor3f(1.0,1.0,1.0);
// //   glDisable(GL_LIGHTING);
// //   glDisable(GL_BLEND);
//   glBegin(GL_LINES);
//     glVertex3f(0.0,  0.0, -1000.0);
//     glVertex3f(0.0,  0.0, 10000.0);
//     glVertex3f(0.0, -1000.0,0.0);
//     glVertex3f(0.0, 1000.0,0.0);
//     glVertex3f(1000.0,0.0,0.0);
//     glVertex3f(-1000.0,0.0,0.0);
// //     glVertex3d(0.0,  0.0, 1.1);
// //     glVertex3d(-1.0,  1.0, 0.8);
// //     glVertex3d( 1.0,  1.0, 0.8);
//
//   glEnd();
// //   glEnable(GL_LIGHTING);
// //   glEnable(GL_BLEND);
// //
//   glPopMatrix();

}
Jan Möbius's avatar
 
Jan Möbius committed
1023

Jan Möbius's avatar
 
Jan Möbius committed
1024
void glViewer::update_lights()
Jan Möbius's avatar
 
Jan Möbius committed
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056
{
  makeCurrent();

  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glLoadIdentity();
  glMultMatrixd(light_matrix_.data());

  GLfloat pos[4], col[4];

  col[0] = col[1] = col[2] = 0.7;
  pos[3] = col[3] = 0.0;

#define SET_LIGHT(i,x,y,z) { 			\
    pos[0]=x; pos[1]=y; pos[2]=z;		\
    glLightfv(GL_LIGHT##i, GL_POSITION, pos);	\
    glLightfv(GL_LIGHT##i, GL_DIFFUSE,  col);	\
    glLightfv(GL_LIGHT##i, GL_SPECULAR, col);	\
    glEnable(GL_LIGHT##i);			\
  }

  SET_LIGHT(0,  0.0,  0.0, 1.0);
  SET_LIGHT(1, -1.0,  1.0, 0.7);
  SET_LIGHT(2,  1.0,  1.0, 0.7);

  col[0] = col[1] = col[2] = 0.3; col[3] = 1.0;
  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, col);

  glPopMatrix();
}


Jan Möbius's avatar
 
Jan Möbius committed
1057
void glViewer::rotate_lights(ACG::Vec3d& _axis, double _angle)
Jan Möbius's avatar
 
Jan Möbius committed
1058 1059 1060 1061 1062 1063 1064 1065 1066
{
  light_matrix_.rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  update_lights();
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1067
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
1068
{
1069 1070
  if (!initialized_)
    initializeGL ();
Jan Möbius's avatar
 
Jan Möbius committed
1071

1072
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
1073
  {
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1074 1075
    ACG::Vec4f clear_color;

1076
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093

    glPushAttrib (GL_ALL_ATTRIB_BITS);

    glEnable(GL_DEPTH_TEST);
    glEnable(GL_LIGHTING);
    glDisable(GL_DITHER);
    glShadeModel( GL_FLAT );

    glMatrixMode(GL_PROJECTION);
    glPushMatrix();

    glMatrixMode(GL_MODELVIEW);
    glPushMatrix();


    normalsMode(      normalsMode_      );

1094
    applyProperties();
1095

Jan Möbius's avatar
 
Jan Möbius committed
1096 1097 1098 1099 1100 1101 1102
    // light sources
    update_lights();

    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1103 1104 1105 1106 1107 1108
    if (properties_.renderPicking())
    {
      clear_color = properties_.glState().clear_color();
      properties_.glState().set_clear_color (ACG::Vec4f (0.0, 0.0, 0.0, 1.0));
    }

Jan Möbius's avatar
 
Jan Möbius committed
1109 1110
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
 
Jan Möbius committed
1111
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
1112

1113
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1114 1115 1116 1117 1118 1119 1120 1121 1122 1123

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1124 1125 1126

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
1127 1128 1129 1130 1131 1132 1133
  }
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1134
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
1135 1136
{
  updateProjectionMatrix();
Jan Möbius's avatar
 
Jan Möbius committed
1137
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1138 1139 1140
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
 
Jan Möbius committed
1141
  update();
1142 1143
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1144 1145
}

Jan Möbius's avatar
 
Jan Möbius committed
1146 1147 1148
void glViewer::moveEvent (QGraphicsSceneMoveEvent *)
{
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1149 1150 1151
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
 
Jan Möbius committed
1152
  update();
1153 1154
  
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1155
}
Jan Möbius's avatar
 
Jan Möbius committed
1156 1157 1158

//-----------------------------------------------------------------------------

Jan Möbius's avatar
 
Jan Möbius committed
1159
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1160
{
1161
  // Get current matrices
Jan Möbius's avatar
 
Jan Möbius committed
1162 1163 1164
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179
  // Add modelview matrix to output
  _view += QString(VIEW_MAGIC) + "\n";
  _view += QString::number(m(0,0)) + " " + QString::number(m(0,1)) + " " + QString::number(m(0,2)) + " " + QString::number(m(0,3)) + "\n";
  _view += QString::number(m(1,0)) + " " + QString::number(m(1,1)) + " " + QString::number(m(1,2)) + " " + QString::number(m(1,3)) + "\n";
  _view += QString::number(m(2,0)) + " " + QString::number(m(2,1)) + " " + QString::number(m(2,2)) + " " + QString::number(m(2,3)) + "\n";
  _view += QString::number(m(3,0)) + " " + QString::number(m(3,1)) + " " + QString::number(m(3,2)) + " " + QString::number(m(3,3)) + "\n";

  // Add projection matrix to output
  _view += QString::number(p(0,0)) + " " + QString::number(p(0,1)) + " " + QString::number(p(0,2)) + " " + QString::number(p(0,3)) + "\n";
  _view += QString::number(p(1,0)) + " " + QString::number(p(1,1)) + " " + QString::number(p(1,2)) + " " + QString::number(p(1,3)) + "\n";
  _view += QString::number(p(2,0)) + " " + QString::number(p(2,1)) + " " + QString::number(p(2,2)) + " " + QString::number(p(2,3)) + "\n";
  _view += QString::number(p(3,0)) + " " + QString::number(p(3,1)) + " " + QString::number(p(3,2)) + " " + QString::number(p(3,3)) + "\n";

  // add gl width/height, current projection Mode and the ortho mode width to output
  _view += QString::number(glWidth()) + " " +  QString::number(glHeight()) + " " + QString::number(projectionMode_) + " " + QString::number(orthoWidth_) + "\n";
Jan Möbius's avatar
 
Jan Möbius committed
1180 1181 1182 1183 1184 1185
}


//----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1186
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1187 1188 1189 1190
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;

1191 1192 1193
  // Remove the magic from the string
  QString temp = _view;
  temp.remove(0,sizeof(VIEW_MAGIC));
Jan Möbius's avatar
 
Jan Möbius committed
1194

1195 1196
  //Split it into its components
  QStringList split = temp.split(QRegExp("[\\n\\s]"),QString::SkipEmptyParts);
Jan Möbius's avatar
 
Jan Möbius committed
1197 1198 1199 1200

  ACG::GLMatrixd m, p;
  int            w, h, pMode;

1201 1202 1203 1204 1205
  // Check if the number of components matches the expected size
  if ( split.size() != 36 ) {
    std::cerr << "Unable to paste view ... wrong parameter count!! is" <<  split.size()  << std::endl;
    return false;
  }
Jan Möbius's avatar
 
Jan Möbius committed
1206

1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248
  // Parse the components
  bool ok = true;;

  m(0,0) = split[0].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,1) = split[1].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,2) = split[2].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,3) = split[3].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,0) = split[4].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,1) = split[5].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,2) = split[6].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,3) = split[7].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,0) = split[8].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,1) = split[9].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,2) = split[10].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,3) = split[11].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,0) = split[12].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,1) = split[13].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,2) = split[14].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,3) = split[15].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,0) = split[16].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,1) = split[17].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,2) = split[18].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,3) = split[19].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,0) = split[20].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,1) = split[21].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,2) = split[22].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,3) = split[23].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,0) = split[24].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,1) = split[25].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,2) = split[26].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,3) = split[27].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,0) = split[28].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,1) = split[29].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,2) = split[30].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,3) = split[31].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }

  w =  split[32].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  h =  split[33].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  pMode =  split[34].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  orthoWidth_ = split[35].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }

  // Switch to our gl context
Jan Möbius's avatar
 
Jan Möbius committed
1249 1250
  makeCurrent();

1251
  // set projection mode
Jan Möbius's avatar
 
Jan Möbius committed
1252 1253 1254
  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

1255
  // Apply new modelview matrix
Jan Möbius's avatar
 
Jan Möbius committed
1256 1257 1258
  glstate_->set_modelview(m);


1259 1260 1261 1262 1263 1264 1265 1266 1267
  std::cerr << "Todo : Add Checkbox if size should also be pasted" << std::endl;

//   if (w>0 && h>0 &&
//       action_["PasteDropSize"]->isChecked() )
//   {
//     glstate_->set_projection(p);
//     glView_->setFixedSize(w,h);
//     updateGeometry();
//   }
Jan Möbius's avatar
 
Jan Möbius committed
1268 1269 1270 1271 1272 1273 1274 1275 1276 1277

  updateGL();

  return true;
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1278
void glViewer::actionCopyView()
1279 1280 1281 1282 1283 1284 1285 1286 1287
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1288
void glViewer::actionPasteView()
1289 1290 1291 1292 1293 1294
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1295 1296 1297
//-----------------------------------------------------------------------------

void
1298
glViewer::createWidgets()
Jan Möbius's avatar
 
Jan Möbius committed
1299 1300
{
  // Construct GL context & widget
1301

Jan Möbius's avatar
 
Jan Möbius committed
1302 1303 1304 1305 1306
  wheelZ_=new ACG::QtWidgets::QtWheel( 0,"wheel-z",ACG::QtWidgets::QtWheel::Vertical);
  wheelZ_->setMinimumSize(wheelZ_->sizeHint());
  wheelZ_->setMaximumSize(wheelZ_->sizeHint());
  connect(wheelZ_,SIGNAL(angleChangedBy(double)),
	  this,SLOT(slotWheelZ(double)));
1307 1308
  wheelZ_->setToolTip( tr("Translate along <b>z-axis</b>."));
  wheelZ_->setWhatsThis( tr("Translate along <b>z-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1309 1310 1311 1312 1313 1314

  wheelY_=new ACG::QtWidgets::QtWheel( 0,"wheel-y",ACG::QtWidgets::QtWheel::Horizontal);
  wheelY_->setMinimumSize(wheelY_->sizeHint());
  wheelY_->setMaximumSize(wheelY_->sizeHint());
  connect(wheelY_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelY(double)));
1315 1316
  wheelY_->setToolTip(tr("Rotate around <b>y-axis</b>."));
  wheelY_->setWhatsThis( tr("Rotate around <b>y-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1317

1318
  wheelX_=new ACG::QtWidgets::QtWheel( 0,"wheel-x" ,ACG::QtWidgets::QtWheel::Vertical);
Jan Möbius's avatar
 
Jan Möbius committed
1319 1320 1321 1322
  wheelX_->setMinimumSize(wheelX_->sizeHint());
  wheelX_->setMaximumSize(wheelX_->sizeHint());
  connect(wheelX_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelX(double)));
1323 1324
  wheelX_->setToolTip(tr("Rotate around <b>x-axis</b>."));
  wheelX_->setWhatsThis( tr("Rotate around <b>x-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1325

1326 1327 1328 1329 1330
  // Hide or show wheels (depending on ini option)
  if(!OpenFlipper::Options::showWheelsAtStartup()) {

	  slotHideWheels();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343

  QGraphicsWidget *wheelX = glScene_->addWidget (wheelX_);
  QGraphicsWidget *wheelY = glScene_->addWidget (wheelY_);
  QGraphicsWidget *wheelZ = glScene_->addWidget (wheelZ_);

  wheelX_->setWindowOpacity (0.5);
  wheelY_->setWindowOpacity (0.5);
  wheelZ_->setWindowOpacity (0.5);

  wheelX->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
  wheelY->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
  wheelZ->setCacheMode(QGraphicsItem::DeviceCoordinateCache);

Jan Möbius's avatar
Jan Möbius committed
1344 1345 1346 1347
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1348

Jan Möbius's avatar
Jan Möbius committed
1349 1350 1351 1352
  connect(wheelX_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));
  connect(wheelY_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));
  connect(wheelZ_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));

Jan Möbius's avatar
 
Jan Möbius committed
1353
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1354 1355 1356 1357 1358
}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1359
void glViewer::translate(const ACG::